I might suggest "The Soldiers' Song" from Knickerbocker Holiday". I was a member of the cast of a production of that great musical in 1950 or so, and the part of this song I can now remember is like this:

"To war, to war, to war!
We don't want what we're fighting for!
To war, to war, to war!
But that's all right when soldiers go to war.

Oh, if we leave our homes and go to fight,
It's not because we're certain that we're right,
Or even that it fills us with delight
That we'll be slaughtered heroes by tonight,
Or that we've been offered gold!
No, it's only that we're told!

To war, to war, to war!" and so forth.

More's the pity, a quick Google didn't get me the complete lyrics.

Dave Oesterreich